Let's divide 10243009 by 812
We're looking to find how many times 812 goes into 10243009.

Advancing to step 1:
1 divided by 812 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 812

Advancing to step 2:
10 divided by 812 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 10, we get 10.
Fetch the next digit (2) from the dividend, attach it to 10 and continue: 102 / 812

Moving on to step 3:
When dividing 102 by 812, we get 0 with a remainder of 102.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 102 to get 102.
Take the next digit (4) from the dividend and append it to 102, then repeat: 1024 / 812

Step 4:
The number 812 fits into 1024 1 times, leaving a remainder of 212.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 812 from 1024 to get 212.
Fetch the next digit (3) from the dividend, attach it to 212 and continue: 2123 / 812

Moving on to step 5:
The number 812 fits into 2123 2 times, leaving a remainder of 499.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 499 after subtracting 1624 from 2123.
Bring next digit (0) of the dividend behind the 499 and repeat the process: 4990 / 812

Going ahead to step 6:
The number 812 fits into 4990 6 times, leaving a remainder of 118.
Record the quotient 6 as the next digit in the result. 
Result so far: 126.0
The remainder is 118 after subtracting 4872 from 4990.
Fetch the next digit (0) from the dividend, attach it to 118 and continue: 1180 / 812

On to step 7:
The number 812 fits into 1180 1 times, leaving a remainder of 368.
Write down 1 as next digit of the result. 
Result so far: 1261.0
Deduct 812 from 1180 and we're left with 368.
Grab the next digit (9) from the dividend, add it to 368, then carry on: 3689 / 812

Let's proceed to step 8:
812 goes into 3689 4 times with a remainder of 441.
Put 4 as the next digit of the answer. 
Result so far: 12614.0
Deduct 3248 from 3689 and we're left with 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Moving on to step 9:
812 can be fit into 4410 5 times, resulting in a remainder of 350.
The next digit of our result is 5. 
Result so far: 12614.5
Subtracting 4060 from 4410 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Step 10:
812 can be fit into 3500 4 times, resulting in a remainder of 252.
Use 4 as the next digit of our solution. 
Result so far: 12614.54
If we take 3248 away from 3500, we end up with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

On to step 11:
812 can be fit into 2520 3 times, resulting in a remainder of 84.
Put 3 as the next digit of the answer. 
Result so far: 12614.543
If we subtract 2436 from 2520, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 12:
When dividing 840 by 812, we get 1 with a remainder of 28.
Write down 1 as next digit of the result. 
Result so far: 12614.5431
Deduct 812 from 840 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 13:
812 goes into 280 0 times with a remainder of 280.
Put 0 as the next digit of the answer. 
Result so far: 12614.5431
Deduct 0 from 280 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Let's proceed to step 14:
The number 812 fits into 2800 3 times, leaving a remainder of 364.
Write down 3 as next digit of the result. 
Result so far: 12614.543103
If we take 2436 away from 2800, we end up with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Advancing to step 15:
812 goes into 3640 4 times with a remainder of 392.
Put 4 as the next digit of the answer. 
Result so far: 12614.5431034
If we take 3248 away from 3640, we end up with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Going ahead to step 16:
When dividing 3920 by 812, we get 4 with a remainder of 672.
Write down 4 as next digit of the result. 
Result so far: 12614.54310344
If we subtract 3248 from 3920, we get 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

The final outcome is 12614.54310344, with a leftover of 6.72e-07.